False work for building construction.



A. ARNN.

FALSE WORK FOR BUILDING CONSTRUCTION.

APPLICATION FILED MAB. 9, 19 09.

Patented June 21, '1910.

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- ANDREW EGRANAM ca, PNUTCFLITNOGRAPHERS. wnsnmawwuc A. ARNN.

FALSE WORK FOR BUILDING CONSTRUCTION.

APPLIOATION FILED MAE. 9, 1909.

, Patented June 21,1910.

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lwmron, 3'1; AlbertA-rnm 29 2-9 ,1 BY

ATTORNEYS ANDRE EGRANAM 00.. PunTo-Lm dcmvuins, WASHING'ION. 0.6v

OFFICE.

ALBERT ARNN, OF LITTLE FERRY, NEW JERSEY.

FALSE WORK FOR BUILDING CONSTRUCTION.

Specification of Letters Patent.

Patented June 21, 1910.

Application filed March 9, 1909. Serial 110.489.3165.

To all whom it may concern:

Be it known that I, ALBERT ARNN, a citizen of the United States,residing at Little Ferry, in the county of Bergen and State of NewJersey, have invented new and useful Improvements in False WVork forBuilding Construction, of which the following is a specification.

This invention relates to false work for concrete construction andconsists of telescopic metal work adapted to be suspended from beams orbuilt up about a common center and made adjustable so that it may beproperly located and adjusted, and then covered with sheet metal to formthe mold for the plastic concrete and after the same sets and dries thefalse work is collapsed and the sheet metal removed, which with otherdetails and objects will be more fully explained in the followingspecification set forth in the claims and illustrated in the drawingsaccompanying this application, and where:

Figure 1 is a sectional view through a concrete flooring and the beamssupporting same and showing the false work in position. Fig. 2 is a viewalong the face of one of the beams and at a right angle to above. Fig.3shows the construct-ion of an arched ceiling by the use of the device.Fig. 1 is a view through the line 11 of Fig. 1. Fig. 5 shows how thedevice may beadapted for use in concrete conduit construction. Fig. 6shows its adaptation to stairway construction. Fig. 7 illustrates theconstruction of a column. Fig. 8 is a view of the sheet metal moldingplates. Fig. 9 shows the method of suspending the plates from a channelbeam. Fig. 10 is an enlarged view of a suspender.

The device is adapted to be suspended from the beams 10 by means of thehooks 11 and 12 whose upper ends engage the flanges of the beam whilethe lower end of the hook 11 is flattened and perforated as at 13 forthe reception of a pin 11 which presses from side to side and is adaptedto carry a suspender 15 with the slot 16 for the flattened portion ofthe hook 11. The suspender 15 comprises two hooks, the upper oneengaging the pin 11 while the lower one is adapted to carry the pipesections 16 and hold it firmly by means of the set screws 17. Thesepipes 16 telescope in larger sec- .tions 18 which carry one or more ties19 which are connected by pipes 20 parallel with the beams.

In the construction shown in Figs. 1, 2 and 1 where angular constructionis resorted to each beam 10 supports the usual metal rods 21 and carriesthe hooks and suspender 15. The sections 18 are supported at each end bythe pipes 16 .and also carry .at the ends the ties 19 but the latter maybe adjusted to produce a separation of any desired extent and they carrythe upright sections 22 into which smaller sections 23 telescope and areheld in place by the set screws 21. By means of elbows 25 the pipesections 23 have connected the horizontal sections 26 and 27 the formertelescoping with the latter.

lVhen it is desired to construct a flooring such as shown in the threeviews referred to the pipe sections are adjusted to fit the properdimensions and on these are placed the folding plate sections 28 withthe pins 29 on two sides and cooperating hooks 30 on the opposite sides,both being adjustable and the ends of the lower plates having notches 31for the passage of the lower ends of the hooks 11. These plates now formthe boxing shown in Fig. 1 and into same is placed the plastic concreteuntil the floor level is reached and it is allowed to set and dry whenthe sections 22 and 23 and 26 and 27 are telescoped and the frame Workthey comprise lowered. The, suspenders 15 which have also supported thelower plate are removed and the whole pipe system taken out and theplates removed. This frame may then be used again for forms of this orother dimensions and is quickly and easily set up or removed and is avast improvement over the old wooden false work construction such asheretofore used and which may be used but once and requires time andexpense in erecting and removing.

When the molding plates are removed the flattened ends of the hooks 11may be cut off or used to attach metal ceiling panels, to support pipesor for many other purposes. In case it is desired to give the ceiling anarched effect, plates 32 curved to give the desired shape are hinged tothe lower plates 33 and at their meeting place are supported by thetelescopic pipe sections 31 and 35, the latter carried by the tie 19 andpipes 16 and 18 that are supported as usual.

Fig. 5 shows how such a frame work may be used in constructingcylindrical work as for sewers and conduits and the ties are carry thetelescopic sections 37 and 38 which are adjustable and support plates 39of any desired shape to receive the plastic concrete on their outersurfaces, all of which may be easily adjusted or removed and again put1n use.

Fig. 6 illustrates the use of these pipe sections and couplings forbuilding stairways or similar structures and Fig. 7 shows the hooks 11and 12 applied to a .verticalbeam used as a columnand aroundwhich aconcrete structure is being built within molding plates 33, hingedtogether and held in place by the-plns 14. V. 1

When a channel beam 41 suchas shown in Fig. 9 is used the plates arehung by means of ahook 42 which hangs over theupper edge of the beam andmay be pulled out after the plates are removed.

It is obvious that various forms and construction of concrete may beresorted to by combinations of these plates, pipe sections and couplingsand that modifications may be adopted in the construction of these partswithout departing from the essential features above described.

What I claim as new and desire to secure by Letters Patent is:

1. In false work for building construction, plates having hinges andadapted to conform with the concrete structure carried by the beams ofthe building, frames made up of pipes and adapted to be adjustable toconform with the position of the plates to support same, and hooksadapted to engage the beams and support the frames.

2. In false work for building construction, the combination with framesmade up of pipes telescoping within themselves so as to be adjustable,of hinged plates supported by the frames, bolts in the pipes to secureplates and same when adjusted, cooperating hooks to support the pipes,and connecting means between the hinged plates and the frame.

3. In false work for building construction, of hangers, hooks engagingthe flanges of the beams and carrying the hangers, telescopic pipesections carried by the hangers, adjusting bolts, angle couplings, andfolding metal moldingplates supported by the telescopic pipe sections.

4. In false work for building construc-' tion, telescopic pipes,telescopic pipes connected with the first named pipes and adapted forvertical adjustment and for adjustment longitudinally of the first namedpipes, angularly vadjustable plates supported by the second namedtelescopic pipes, and connections between a plurality of said hinged aplurality of the first named telescopic pipes.

5. In false work for building construction, of hooks attached to thebeams of the hangers on the hooks, pipe sections carried by same, largerpipe sections telescoping over the first sections, angle couplings, andsheet metal molding plate sections hinged to each other and adapted totake the shape of the pipe sections.

6. In false work for building construction, of a collapsible frame madeup of telescopic pipes and hung from the beams of the construction,molding plates supported by the frame, and adjustable cooperating pinsand hooks to connect the molding plates to allow them to take the sha eof the frame.

In testimony whereof I a my signature in presence of two witnesses.

ALBERT ARNN.

. Witnesses:

JAMES F. DUHAMEL, MAE W. CLINTON.

construction and linked with each other,.

